Recent content by jacob95

thanks what does ΔH stand for in q=ΔH*m?

yes?

so would it be q=250g*75°C*4.186j=78487.5 joules? or q=250g*75°C*1 then I would have to convert it to calories 78 487 joules = 18 758 cal?

Homework Statement 1.)How many joules are required to heat 250 grams of liquid water from 25 C to 100 C 2.)How much heat is released when 200 grams of steam condenses? Homework Equations q=m*(delta) t*c q=(delta)H*m The Attempt at a Solution 1.)q=250g*75°C*4.186joules ? = 74 487joules ? 74...