How much energy would it take to heat 10 g of water from 10 to 15 C?

1 Answer
May 18, 2017

Answer:

It would take #"200 J"# of energy.

Explanation:

Use the following equation:

#Q=mcDeltaT#,

where #Q# is energy gained or lost in Joules (J), #m# is mass, #c# is the specific heat capacity of the substance undergoing a temperature change, and #DeltaT# is change is temperature, which is #(T_"final"-T_"initial")#.

#color(blue)("Organize your data"#.

Given/Known
#m="10 g"#
#c_"water"=(4.184 "J")/("g"*""^@"C")#
#DeltaT=(15^@"C"-10^@"C")=5^@"C"#

Unknown: Q

#color(blue)("Solution"#
Insert your data into the equation and solve for #Q#.

#Q=10"g"xx(4.184"J")/("g"*""^@"C")xx5^@"C"="200 J"# rounded to one significant figure