Answer:
∆H fus = -∆H solid
Explanation:
Enthalpy of melting (fusion) is the enthalpy change when a substance melts. It is always endothermic (i.e heat is being absorbed). So ∆H is positive.
Enthalpy of freezing (solidification) is the enthalpy change when a substance freezes. It is negative that of melting.
Answer: 0.001 metric tonnes
Explanation:
According to Einstein equation, Energy and mass are inter convertible.
E= Energy
m = mass
c= speed of light
Given : Complete combustion of 1.00 kg of coal releases about 
of energy.
Given mass: 1 kg
Converting kg to metric ton using the conversion factor:
1 kg=0.001 metric tonnes
Thus 1 kg of coal would also be equal to 0.001 metric tonnes.
Answer:
gvapor or gas to liquid
Explanation:
water which collects as droplets on cold surface when humid air is in contact with it
Answer:
update the answer with the questions
Explanation:
then I’ll fix question
Answer: Al(ClO3)3 molecular weight.
Explanation:
