Purchase Solution

Heat, thermometry and thermodynamics.

Not what you're looking for?

Ask Custom Question

1.) If 596 J of heat are added to 29.6 g of water at 22.9 degrees Celsius in a coffee cup calorimeter, what will be the final temperature of the water?
2.) A 5.037 g piece of iron heated to 100. degrees Celsius is placed in a coffee cup calorimeter that initially contains 27.3 g of water at 21.2 degrees Celsius. If the final temperature is 22.7 degrees Celsius, what is the specific heat capacity of the iron (J/g, degrees Celsius)
3.) The specific heat of aluminum is 0.89 J/g, degrees Celsius. How much energy is required to raise the temperature of a 15.0 g aluminum can 18 degrees Celsius?
4.) One liter of an ideal gas at 0 degrees Celsius and 10 atm was allowed to expand to 1.89 L against a constant external pressure of 1 atm at a constant temperature. The enthalpy change (delta H) for this process is -901 J. Calculate q, w, and delta E.
5.) The heat capacity of a bomb calorimeter was determined by burning 6.79 g methane (heat of combustion= -802 kJ/mol) in the bomb. The temperature changed 10.8 degrees Celsius.
a. What is the heat capacity of the bomb?
b. A 12.6 g sample of acetylene, C2H2, produced a temperature increase of 16.9 degrees Celsius in the same calorimeter. What is the heat of combustion of acetylene (kJ/mol)?

Purchase this Solution
Solution Summary

There are five numerical problems. Three of which related to the change in temperature etc. One is about the expansion of a gas using the first law of thermodynamics and one is about the heat produced due to combustion bomb.

Purchase this Solution
Free BrainMass Quizzes
Match Elements with their Symbols

Elements are provided: choose the matching one- or two-letter symbol for each element.

Thermochemistry

The quiz helps in revising basic concepts about thermochemistry.

Periodic table

General Chemistry - Classification of Matter

This test will assess your knowledge on the classification of matter which includes elements, compounds and mixtures.

Organic Chemistry Naming: Alkanes

This is a quiz which is designed to assist students with learning the nomenclature used to identify organic compounds. This quiz focuses on the organic compounds called Alkanes.

View More Free Quizzes
Related BrainMass Solutions

  • Applying the First and Second Law of Thermodynamics

    565405 Applying the First and Second Law of Thermodynamics Provide an explanation of the meaning of the first and second laws of thermodynamics.

  • Laws of Thermodynamics - Conceptual Explanations

    Laws of thermodynamics Thermodynamics is the division of physics concerned with the inter conversion of heat, work and other forms of energy and with the states of physical systems.

  • First law of Thermodynamics, Entropy and Enthalpy

    110245 Applied Heat Thermodynamics Please help with the problems involving applied heat thermodynamics. 3.

  • The Laws of Thermodynamics in the Rainforest

    The ability to bring about change and /or to do work is called energy. This energy comes in many different forms, namely heat, light, electric and chemical energy. This study of energy is called thermodynamics.

  • Thermodynamics & Newton's law of cooling

    c) Given that the heat loss is negligible (A = 0), show that a solution of the equation is as given (see attachment) Please refer to the attachment. The expert examines thermodynamics and Newton's law of cooling.

  • Natural selection, thermodynamics and ecosystem

    479845 Natural Selection, Thermodynamics and Ecosystems What is the difference between natural selection and ecological succession? What are the first and second laws of thermodynamics? How do these laws affect ecosystems?

  • Efficiency and Heat Exchange by Reversible Heat Engines

    You can solve this problem by using second law of thermodynamics and Clausius inequality for reversible heat engines. Here heat rejected by engine X is the input of engine Y and heat rejected by engine Y goes to the sink.

  • Physics: Second Law of Thermodynamics

    One way of stating the second law of thermodynamics (you will learn that there are many, many ways to interpret the second law of thermodynamics) is that it is not possible to convert heat entirely into work (that is at 100% efficiency) in a cyclic process

  • Entropy - explanation

    Comparing this to the entropy of an ideal gas calculated from classical thermodynamics, considering the internal energy and heat capacity, we get a similar equation but with a constant of integration.

  • Thermodynamics: Heat Flow, Entropy, Work

    164099 Thermodynamics: Heat Flow, Entropy, Work A 100 ohm resistor is immersed in a constant temp bath at 300 K. A current of 10 amps flows through the resistor and a steady state is achieved. a) Is there a flow of heat into the resistor?

View More Related Solutions