Answer to Question #338039 in General Chemistry for Carrot

Question

Calculate the ΔH of the following problems.

1. How many joules are required to raise the temperature of 450 mL of water from 30°C to 100°C?

2. The specific heat of copper metal is 0.385 J/g-°K. How many kJ of heat are needed to raise the temperature of 1.1 kg block of copper from 27.5°C to 50°C?

Answer 1

1. 25.2 kJ

2. 9.5 kJ