Please answer Question 4(5 points)
If 2.0 moles of water is cooled from 101 degree C steam to -1.0 degree Cice, what is the total energy lost?

Q = -15363.65 J

Explanation:

Given data:

Number of moles of water = 2.0 mol

Initial temperature = 101°C

Final temperature = -1.0°C

Total energy lost = ?

Solution:

Mass of water:

Mass = number of moles × molar mass

Mass = 2 mol × 18 g/mol

Mass = 36 g

Heat lost:

specific heat capacity of water is 4.184 J/g.°C

Formula:

Q = m.c. ΔT

Q = amount of heat absorbed or released

m = mass of given substance

c = specific heat capacity of substance

ΔT = change in temperature

ΔT =  -1.0°C -  101°C

ΔT =  -102°C

Q = 36 g × 4.184 J/g.°C × -102°C

Q = -15363.65 J

Negative sign show heat is released.

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements