Answer:
Explanation:
Efficiency of the electric power plant is 
Here Temperature of hot source 
and Temperature of sink 
Hence the efficiency is 
Now another formula for thermal efficiency Is
Here QI is the of heat taken from source 100 MJ ; Q2 of heat transferred to the sink (river) to be found
W is the of work done and W = QI -Q2
Hence From
Hence the of heat transferred to the river Is 
Answer:
29.2 L
Explanation:
Given data
We can find the volume of the gas (V) of the using the ideal gas equation.
P × V = n × R × T
V = n × R × T / P
V = 1 mol × (0.0821 atm.L/mol.K) × 293 K / 0.824 atm
V = 29.2 L
Answer:
It is A
Explanation:
If you think about it, no-polar covalent bonds are in a symmetrical line, and polar bonds are on the diagonals of the center atom.
I hope I helped :)
<span>Calculating mass using Atomic Mass Units (amu):. Ex. Calculate the mass, in amu, of a sample of aluminum that contains 75 atoms. 1 Al atom = 26.98 amu.</span>
Answer:
Sodium
(Na)
Just count the electrons and search which atom it is.
