Need help with this one... all questions - > This is the Pre-Lab for Lab 9 - Det
ID: 1044498 • Letter: N
Question
Need help with this one... all questions - > This is the Pre-Lab for Lab 9 - Determination of the Specific Heat of a Metal for Chem-1111
Question 3 data is only the question above
Question Completion Status QUESTION 6 What was the change in temperature for the metal,&Tmetal; in degrees °C), for the example described in Question 32 133.0 0-670 0 -78 0 7.8 670 QUESTION7 How much heat nowed from the metal into the water (in Joules)? Once again, refer to the example descnbed in Question 3 0 21J 0 300J 1300 10800 J QUESTION 8 This is important! How much heat flawed into the metal (in Joules)? -10800 J -1300 0 -300 J di 200u d 1260 J QUESTION9 What is the specific heat of the metal (in ?-4. 18 JugOC c) 4 18 ?418 JigaC QUESTION 10 Something extra to think about How can the order of magnitude difference in the specific heats of water and the metal be interpreted? D The molar mass of the metal is ten times greater than the mclar mass of water Ths really doesn't tel us anything, since water is not a metal. There was more water present than metal. It takes much more heat to change the temperature of water than of the metal, given the same mass of water and metal.Explanation / Answer
Answer:
Q10)
Specific heat:
1)Definition : Specific heat of any substance is the energy(Heatenergy) in Joules required to raise the temperature of 1 gram ofsubstance by 1 0C or 1K.
For water specific heat has the value 4.18 J/g. 0Cand have any other metal say copper it has sp. Heat 0.358J/g. 0C
This means that,
Given the same mass of water and metal (say 1 gram) it will takemuch more heat to change the temperature of water by 10C than that of by metal Copper for the same .(OptionD)
For an instance, 1 gram water will take 4.18 J heat energy and 1gram Copper metal will take 0.358 J heat energy to raise theirtemperature by 1 0C.
Molar mass doesn’t matter in case of specific heats as we definesp. Heats for gram weight and not for molar mass. (hence Option-1rulled out)