q = mass * specific heat * change in temp. ( Joules, so conversion at end )
q = (93.6 g)(2.51 J/gC)[55o C - ( - 35o C)]
= 21144.24 Joules
===============================
This heat is 51, 33 cal.
quantity of heat required =mass*specific heat of water*change in temperature Q=160*1*(77-19)=9280 calories=9.28 kilo calories
103 calories. The heat of fusion of water is 80 cal/g and it takes one calorie to change the temperature of 1 g of water by 1 degree. 80+23=103 calories
Butanol is has less polarity than methanol
specific heat(; your welcome!
Specific heat for aluminium = 0.214 Heat required = 38.2 x 0.214 x (275 - 102) = 1414.24 calories
This heat is 51, 33 cal.
The number of calories required will depend on the mass of water which is to be heated.
quantity of heat required =mass*specific heat of water*change in temperature Q=160*1*(77-19)=9280 calories=9.28 kilo calories
1370 calories
q (amt of heat) = mass * specific heat * temp. differenceThe specific heat of water is 1.00 cal/goC & the temperature difference is 70-30 = 40oCq = (105 grams)*(1.00 cal/goC)*(40oC)= 4,200 calories
at normal atmospheric pressure methanol boils at around 67 degrees (C) and water boils at 100 degrees .. so I guess the easiest way would be by simply evaporating the methanol at a temperature around 80 degrees .. be careful though and take all the ness. safety precautions .. methanol is VERY poisonous and flammable .. so better do it in gas cabin or in an open room with good ventilation .. oh and do not heat the mixture directly .. you should heat it in a water bath .. all the best
How much heat (in calories) is required to heat a 43 g sample of aluminum from 72 F to 145F
1.25
80.5 calories 35-12=23 23*3.5=80.5 1c raises 1 gr. h2o 1degree centigrade Here is the formula, it should help a lot:Total Number of Calories = (Specific Heat of Water) ×(Mass of Water) × (Absolute Temperature Change)
100
103 calories. The heat of fusion of water is 80 cal/g and it takes one calorie to change the temperature of 1 g of water by 1 degree. 80+23=103 calories