Question

Question 3: When you put heat into an object and the temperature changes, what factors influence how much the temperature will change? Site experimental results that support what you say. Question 4: a) If you add 20 calories to 10 grams of water at 10 degrees Celsius, what will happen? b) If you add 20 calories to 1 gram of water at 10 degrees Celsius, what will happen? c) If you add 20 calories to 1 gram of water at 50 degrees Celsius, what will happen?

Please answer in detail.

Answer 1

Q. No.3. When heat is added to an object and the temperature changes. The change in temperature depends on the speed of the particles, number of particles(mass of the substance), specific heat of the substance and the temperature at which heat is supplied. Depending in the mass of the substance and temperature, the change in temperature takes place as explained in the below given process.

Q. No.4. The heat change that takes place during absorption is given by ms$\Delta$t where m mass of the substance, s is specific heat of the substance and $\Delta$ t is change in temperature

a. For water specific heat, s = 1cal/g-Celsius or 4.184 J/g-Celsius

20 calories of heat is added 10 grams water at 10 degree Celsius

     20 = 10*1*(t-10),===> final temperature is 12 degree Celsius

b.

20 calories of heat is added 1 gram water at 10 degree Celsius

     20 = 1*1*(t-10),===> final temperature is 30 degree Celsius

c.

20 calories of heat is added 1 gram water at 50 degree Celsius

     20 = 1*1*(t-50),===> final temperature is 70 degree Celsius