pls help asap?
How much temperature is required to raise the temperature of a 30 g glass by 40 degrees Celsius? *
choose one :
Q = 1500.8 J
Q = 105.99 J
Q = 200.4 J
Q = 1004.4 J
- billrussell42Lv 71 month ago
do you mean how much energy or work is required? Because as you state it, a temperature of 40º plus the original temp is required.
Energy = 840 J/kgK x 0.030 kg x 40ºC = 1000 J
last answer is closest.
note that the answers to 5 digits are silly as the input data allows only two digits of accuracy.
specific heat glass at 20 C: 840 J/kgK