00:01
Hi, here in this given problem we have to find the correct statements regarding calorimetry.
00:26
So the first statement here, if an object's temperature increases from minus 5 .0 degrees to plus 50 degrees celsius, it means heat was added to it and it is the proven as the temperature is increasing so clearly the heat should be being added to it the second statement latent heat is measured in jules no this is not true as we know it is measured in jules per kilogram then the third statement specific heat of water must always be 4 ,190 joules per kilogram per kelvin and it is true as far as the state is liquid because of if the state is changed to solid means ice or to gas means vapor, then the latent heat, the specific heat will change.
02:51
Then the fourth statement, molar heat capacity of a substance is a function of molar mass.
03:20
Yes, this is also true as molar heat capacity means, the heat required to increase the temperature of one mole of any substance by unit t.
03:37
So this is true.
03:40
Then the fifth statement, change of state, solid to gas requires adding of heat, addition of heat.
03:50
Yes, this is also true...