Question

HELP im stuck on my homework

1. A 15.75-g piece of iron absorbs 1086.75 joules of heat energy, and its temperature changes from 25°C to 175°C. Calculate the specific heat capacity of iron.


2. How many joules of heat are needed to raise the temperature of 10.0 g of aluminum from 22°C to55°C, if the specific heat of aluminum is 0.90 J/g°C?


3. To what temperature will a 50.0 g piece of glass raise if it absorbs 5275 joules of heat and its specific heat capacity is 0.50 J/g°C? The initial temperature of the glass is 20.0°C.


4. Calculate the heat capacity of a piece of wood if 1500.0 g of the wood absorbs 6.75×104joules of heat, and its temperature changes from 32°C to 57°C.


5. 100.0 mL of 4.0°C water is heated until its temperature is 37°C. If the specific heat of water is 4.18 J/g°C, calculate the amount of heat energy needed to cause