expressing adverse or disapproving comments or judgments.
It is 3.2 because you add 2.3 and 4.1 then divide your answer by 2.
During freezing, energy is released by the mass of water without change in temperature. Such energy will also be required if the same mass of water has to be melted.
Then,
Number of moles = mass/molar mass = 253/18.02 =14.04 moles
Energy released = moles*molar enthalpy of fusion = 14.04*6.008 = 84.35 kJ
Answer:
2000J
Explanation:
work done = force * distance
Work done = 100 * 20
Work done = 2000J
Answer:polymer are made of long chains of molecules
Explanation:
