Monday, April 13, 2015

Physics Heat and Temp Review

Numbered Heads Heat and Temperature Review





1.     Definition of temperature  and association with kinetic energy increase on a molecular level.  Know mass plays no part in temperature.

2.     Understand that in thermal equilibrium there is no energy transfer and why.

3.     Know the boiling and melting points of water  and how during a phase change there is thermal equilibrium.

4.     Know the 3 widely used temperature scales and the units for energy.

5.     Know how to convert C. to F. and vice versa.  Memorize at least on form of the formula

6.     Know how to solve for  a temperature change in F  given two temperatures in C.  You cannot solve using the Temp difference in F!

7.     Solve for a delta T during an energy transfer process given Q, C  and mass.

8.     Know about temperature during a phase change and which formula is involved

9.     Interpret a heating diagram  (Q vs T) to  identify the phase changes and t calculate the latent heat of fusion or vaporization.

10.  Interpret a heating diagram  (Q vs T) to  identify the Q transferred during a single phase.

11. Convert K to C  and C to K

12.  Calorimetry  involving water where you solve for the C of an unkown metal given mass and Ti of the metal,  as well as M, C  and delta t of the water.

13. Find final equilibrium temp of a watery substance given m, Ti of the substance  when added to  a  defined mass of water where you know the initial temp of the water and the C of water.  The watery substance has the same C.

Chemistry Numbered Heads Review Chap 10

Numbered Heads Chap 10 Review


Chap 10 Chemistry Test Study Concepts

1.     Convert grams of a molecule (CO2) to moles of CO2.   Practice with other molecular formulas.


2.     Convert moles of a formula to grams of a formula (Calcium Carbonate)


3.     Convert Liters of a  gas at STP to moles of the gas .  Ex N2 gas

4.     Convert grams of a gas at STP to liters of a gas at STP ex Hydrogen H2 gas

5.     Convert Liters of a gas at STP to mass  of the gas at STP  Ex H2O gas

6.     Find the # atoms of an element Ex H, in a certain amount  of moles of a molecular  formula  (C6H6)

7.     Balance an equation

8.     Find the percent composition  of each element in a compound given the formula of the compound

9.     Find the percent composition of each element given the mass of each element in the compound but not the formula

10. Find the empirical formula from example 9 (You have figured out percent composition already)

11.   Find the molecular formula  from # 10 (empirical figured out already  given the molecular mass

12. Given the empirical formula find the molecular formula given the molecular mass.