For some base area B and height h, the volume of a pyramid is
... V = (1/3)Bh
For the same base area and height, the volume of a rectangular prism is
... V = Bh
You will note that the factor of 1/3 is missing, meaning that the volume of the prism is 3 times the volume of the same-dimensions pyramid.
The prism has a volume of 3×(8 cm³) = 24 cm³.
Answer:
Step-by-step explanation:
To work out rate of change of a function, you must differentiate it.
Answer:
A
Step-by-step explanation:
Slope Intercept form is y=mx+b where m is the slope and b is the y-intercept. The line crosses through (0,3) so b=3.
To find the slope, count the units between two points and form a ratio of vertical to horizontal distance. Count from (0,3) to (1,0). It drops -3 units and moves to the right 1 unit. So m = -3/1 = -3.
The equation is y = -3x+3
Answer:
The correct statements are :
1. The enthalpy of the reaction is -184.6 kJ, and the reaction is exothermic.
2. The enthalpy of the reaction is 184.6 kJ and the reaction is endothermic.
Step-by-step explanation:
Enthalpy of reaction is amount of heat absorbed or released during the reaction.
If energy is required, enthalpy of reaction is positive and if energy is released the enthalpy of reaction is negative.
Exothermic reaction: The chemical change is accompanied by the release of heat energy
Endothermic reaction: The chemical change is accompanied by the absorption of heat energy.
So, from the above definitions, it is clear that the enthalpy of reaction of a exothermic reaction is negative and that of a endothermic reaction is positive.
