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Bezzdna [24]
4 years ago
15

Term used by geologists for water that soaks into the ground, fills the openings in the soil, and trickles into cracks and space

s in rock layers
Chemistry
2 answers:
erastova [34]4 years ago
7 0

GROUNDWATER is the term used for water that soak into the ground, fills the openings in the soil and trickles into cracks and spaces in rock layers.

Groundwater is usually found underneath the earth surface in the spaces and cracks in sand, rock and soil. It is stored in aquifers. Ground water usually connect with various water bodies such as oceans, rivers and streams and it is always a natural source of water for vegetation. Ground water is a very important natural resource.

madreJ [45]4 years ago
3 0
Ground Water because it seeps into the ground.
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When 18.9 kJ is transferred to a gas sample in a constant volume adiabatic container with a calorimeter constant of 2.22 Kj/K, t
poizon [28]

Answer:

(a) Cgas = 0.125 kJ/k

(b) cgas = 0.25kJ/kg.K

(c) cm(gas) = 0.021kJ/mol.K

Explanation:

18.9 kJ is equal to the sum of the heat absorbed by the gas and the heat absorbed by the calorimeter.

Qcal + Qgas = 18.9 kJ  [1]

We can calculate the heat absorbed using the following expression.

Q = C . ΔT

where,

C is the heat capacity

ΔT is the change in the temperature

<em>(a) What is the heat capacity of the sample?</em>

From [1],

Ccal . ΔT + Cgas . ΔT = 18.9 kJ

(2.22kJ/K) × 8.06 K + Cgas × 8.06 K = 18.9 kJ

Cgas = 0.125 kJ/k

<em>(b) If the sample has a mass of 0.5 kilograms, what is the specific heat capacity of the substance?</em>

We can calculate the specific heat capacity (c) using the following expression:

c=\frac{C}{m} =\frac{0.125kJ/K}{0.5kg} =0.25kJ/kg.K

<em>(c) If the sample is Krypton, what is the molar heat capacity at constant volume of Krypton? The molar mass of Krypton is 83.8 grams/mole.</em>

The molar heat capacity is:

\frac{0.25kJ}{kg.K} .\frac{1kg}{1000g} .\frac{83.8g}{mol} =0.021kJ/mol.K

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