Question

Question #22d95

Answer 1

50 calories or 2,092 joules

Explanation:

For a pure condensed phase (i.e.; pure solid, pure liquid or pure gas phase substance ) the expression Q = mc`DeltaT` is used to calculate the quantity of heat associated with the specified `DeltaT` value given.
Q = Heat Quantity in calories or joules
m = mass (grams) of substance
c = specific heat = a constant that defines the amount of heat needed to raise one gram of substance by 1 degree celcius.
`DeltaT` = change in temperature

For 10 ml water ( = 10 grams water b/c 1 g = 1 ml) heated by `5^oC`
& `c=1.00 ("cal"/g^oC)`:

Q = mc`DeltaT` = (`10 g`) `xx`1.00 (`"cal"/g^oC"`)`xx` (`5^oC`) = `50 "calories"`
=> `50 calxx4.184"joules"/"cal"` = `2,029"joules"`