1kg of aluminum requires 887 j (joule) to raise its temperature by 1 k (kelvin). the specific heat of aluminum is expressed as (j/(kg* for a 100 g aluminum bar, how much energy is needed to raise the temperature from -9oc to 1oc?

887 J

Explanation:

the specific heat of  a material is defined as the amount of heat energy required to raise the temperature of the substance by 1 K of mass 1 kg. So, the specific heat of the aluminium, c = 887 J/kg K

mass of aluminium, m = 100 g = 0.1 kg

T1 = - 9° C

T2 = 1° C

ΔT = 1 + 9 = 10° C

The amount of heat required

H = m x c x ΔT

H = 0.1 x 887 x 10 = 887 J

be subject to a force andchange its motion

the temperature in kelvin of 2.0 dm3 of an ideal gas is doubled and its pressure is increased by a factor of four. what is the final volume of the gas