# Heat and temperature

1. How much heat is required to raise the temperature by 10 degrees Celsius of one kg of water and iron?

2. Two identical objects (the same mass, material) at temperatures T1 = 20 degrees and T2 = 30 degrees are in contact. What is the final temperature of these objects after they reach thermal equilibrium?

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#### Solution Preview

1. How much heat is required to raise the temperature by 10 degrees Celsius of one kg of water and iron?

Heat = mass X specific heat capacity X change in temperature

specific heat capacity of water = 1 calorie/ gm / deg Celsius= 4.2 Joules/ gm/ ...

#### Solution Summary

Arrives at the final temperature.

$2.49