What is the specific heat of a substance in kJ/kg K that absorbs 2500 joules of heat when a sample of 100 g of the substance increases in temperature from 10 °C to 70°C? (To convert C to K, add 273.15) Round off the final answer to two decimal places if necessary.

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A metal sample weighing 128.00 grams and at a temperature of 98.2 degrees Celsius was placed in 45.50 grams of water in a calorimeter at 22.8 degrees Celsius. At equilibrium the temperature of the water and metal was 35.6 degrees Celsius.  What is the change in temperature of the metal (in degrees C)? (Report this as a positive value)

A particular frost-free refrigerator uses about 790 kWh of electrical energy per year.   - Express this amount of energy in kilojoules (kJ). - Express this amount of energy in Calories (Cal).   - Express this amount of energy in joules (J).

Can you answer this with an explaination please?

AB both

If 30.0 g H20 at 85.0°C is mixed in a coffee-cup calorimeter with 15.0 g H20 at 20.0°C, what is the final temperature (in °C) of the mixture? For this item, use 4.18 J/g.°C as the specific heat of the water. (round off final answer to 1 decimal place)

What is the final temperature (in Celsius) of 610.1 g of water (specific heat = 4.184 j/g Celsius) at 24.20 Celsius that absorbed 950.0 J of heat ?

A 18g sample of a material absorbed 898 calories, raising the temperature of the anitmony from 33 degrees C to its melting point (389 degrees C). Calculate the specific heat (cal/g degrees C) of this material.

A 31.65 g piece of metal at 30.0 °C is placed in 50.0 g of water at 96.5 °C. The specific heat capacity of water is 4.184 J/gºC and that of the metal is 10.3 J/gºC. What is the final temperature in °C of the metal? Enter your answer using 1 decimal place and without unit.