Answers? I can’t see at all
The answer should be B.
When a solid needs to melt, it must absorb enough heat for first, to raise the temperature, and second, to break the bonding. That's why the particles will have a weaker force of attraction to each other. In liquid, the particles will be more free comparing to solid. This type of heat required is called latent heat in specific. It's the heat required to break bonds, or attract bonds when cooling down.
Note that different materials has different specific latent heat for both melting (including freezing) and condensing (including melting).
Answer:
(a) The amount of O2 needed is 2.67 pounds.
(b) The volume required is 847,509 litres.
(c) The heat given off as a result of the combustion to CO2 is 393.5 kJ.
Explanation:
For a complete combustion of C to C02(g)
(a) The molecular mass of O2 is 32 g/mol and the molecular mass of C is 12 g/mol.
We need 1 mol O2 to burn 1 mol of C.
If we need 32 g of O2 to burn 12 g of C, to burn 1 pound of pure carbon charcoal we need (32/12)*1=2.67 pounds of O2.
(b) The density of O2, at atmospheric conditions, is 1.429 g/l. The volume of 2.67 pounds of O2 is
(c) To calculate the heat of the reaction, we have to look up in the Table of Standard Enthalpy of Formation Values and compute the following equation
The heat given off as a result of the combustion to CO2 is 393.5 kJ.
Answer:1.26 x 1010
Explanation: There really isn't anything to explain.
Answer:
i hate it but will try my best
Explanation: just wait