The specific heat of liquid bromine is 0.226J/g-K and the density is 3.12g/mL, how much heat (J) is required to raise the temperature of 10.0mL of bromine from 25.00 C to 27.30 C?
1 Answer
Explanation:
The idea here is that you need to use bromine's density to determine how many grams of bromine you have in that
A density of
#10.0color(red)(cancel(color(black)("mL"))) * "3.12 g"/(1color(red)(cancel(color(black)("mL")))) = "31.2 g"#
Now, the equation that establishes a relationship between heat absorbed and change in temperature looks like this
#color(blue)(q = m * c * DeltaT)" "# , where
Plug in your values and solve for
#q = 31.2color(red)(cancel(color(black)("g"))) * 0.226"J"/(color(red)(cancel(color(black)("g"))) color(red)(cancel(color(black)(""^@"C")))) * (27.30 - 25.00)color(red)(cancel(color(black)(""^@"C")))#
#q = color(green)("16.2 J")#