Question

65. When water is heated from 10°C to 20°C, its internal energy
a) increases by 10
b) is doubled
c) is less than doubled
d) is more than doubled

Answer 1

Answer:

C

Explanation:

convert Celsius to kelvin and then measure change

U=3/2 kT where U is internal energy k is gas constant and T is temp in Kelvins. increase from 283 to 293 kelvin is a small change( less than doubled)

Temperature is doubled when temp rises from e.g. 273K to 546K

i hope u get it