The processes for the 3 types of weathering are,
biological: rocks worn down by plants
physical: water freezing and thawing in cracks of rocks
chemical: Acid rain
Hope this helped!!
Note that
The heating value of standard coal is about 30,080 kJ/kg
1 L of water has a mass of 1.0 kg
The mass of 15 L of water = 15 kg.
The latent heat of vaporization of water is about 2260 kJ/kg,
The energy required to boil 15 L of water is
(2260 kJ/kg)*(15 kg) = 33900 kJ
The mass of coal required to provide this energy is
(33900 kJ)/(30080 kJ/kg) = 1.127 kg
Because 1 kg = 2.205 lb, the mass of coal required is
(1.127 kg)*(2.205 lb/kg) = 2.485 lb
Answer: 2.49 lb (nearest hundredth)
Answer:
The specific heat capacity of silver metal is 0.021485 J/g°C.
Explanation:
The specific heat capacity of silver metal can be found out by using the formula,
Q = (mass) (ΔT) (Cp)
Given,
mass = 75 grams
Q = 56.4 j
ΔT = 35°C
Substituting values,
56.4 = (75)(35)(Cp)
Cp = 0.021485 J/g°C.
Classify each material as an alloy or ceramic
alloy- Bronze,brass, steel and glass
Ceramic- brick and tile
<u><em> Explanation</em></u>
<u><em>Alloy</em></u> is a metal made up by combining two or more metallic elements.
for example, bronze is made up by alloying tin with copper.
<u><em>Ceramic </em></u>materials is an inorganic,non metallic which is often crystalline oxide,nitride or carbide material.
For example, Tiles are made up of natural clay sand and water.