Given that the specific heat capacities of ice and steam are 2.06 j/g · ◦c and 2.03 j/g· ◦c, respectively, calculate the total quantity of heat necessary to melt 82.5 g of ice at −50.0 ◦c and heat it to steam at 200◦c. the molar heats of fusion and vaporization for water are 6.02 kj/mol and 40.6 kj/mol, respectively. assume water freezes at 0◦c and boils at 100◦c. answer in uni

the answer is minerals.

it should have an internal chamber and two thermometers sticking out of the top. the internal chamber will also be closed off from the outside.

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2