To sterilize a 50.0 g glass baby battle, we must raise its temperature from 22°C to 95.0°C. How much heat is required?

1 Answer
Jun 16, 2018

Answer:

#3066# joules

Explanation:

We use the specific heat equation, which states that,

#q=mcDeltaT#

where:

  • #q# is the heat energy supplied in joules

  • #m# is the mass of substance

  • #c# is the specific heat capacity of the substance, which is #(0.84 \ "J")/("g"""^@"C")# for pure glass (source)

  • #DeltaT# is the change in temperature

So, we get:

#q=50color(red)cancelcolor(black)"g"*(0.84 \ "J")/(color(red)cancelcolor(black)"g"color(red)cancelcolor(black)(""^@"C"))*(95^@"C"-22^@"C")#

#=50color(red)cancelcolor(black)"g"*(0.84 \ "J")/(color(red)cancelcolor(black)"g"color(red)cancelcolor(black)(""^@"C"))*73color(red)cancelcolor(black)(""^@"C")#

#=3066 \ "J"#