,FIS2603 Assignment 2 (COMPLETE ANSWERS) Semester
1 2025 (739210) - DUE 17 April 2025; 100% TRUSTED
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Question 1 Evaporation is an important mechanism for
eliminating heat, particularly on a hot day or when exercising.
What are some of the negative consequences of this mechanism
of heat loss? [5]
Negative Consequences of Evaporation as a Mechanism of
Heat Loss
Evaporation plays a crucial role in regulating body temperature
by removing excess heat, especially during activities like
exercise or on hot days. However, despite its importance,
evaporation can have several negative consequences when the
body relies too heavily on it. Below are the key negative effects
and limitations of this heat loss mechanism:
1. Dehydration
Description: Evaporation leads to the loss of water from
the body as sweat. As sweat evaporates from the skin, it
carries away moisture, reducing the body’s overall water
levels.
Negative Effect: If fluids are not replenished, dehydration
can occur. Dehydration impairs the body's ability to cool
itself effectively, leading to an increased risk of heat
, exhaustion and heat stroke, especially in hot and humid
conditions.
2. Electrolyte Imbalance
Description: Along with water, the body loses electrolytes
(sodium, potassium, chloride, etc.) through sweat during
evaporation.
Negative Effect: Loss of electrolytes can lead to an
imbalance, which in turn can cause muscle cramps,
weakness, and impaired nerve function. In severe cases, it
may lead to hyponatremia (low sodium levels), which can
be life-threatening.
3. Limited Effectiveness in Humid Environments
Description: Evaporation is less effective when the air is
saturated with moisture (high humidity). The higher the
humidity, the slower the sweat evaporates because the air
already contains a large amount of water vapor.
Negative Effect: In humid conditions, the body’s ability to
lose heat through evaporation is diminished. This results in
poor cooling efficiency, which can lead to overheating
and an increased risk of heat stress or heat-related
illnesses.
4. Risk of Overheating
1 2025 (739210) - DUE 17 April 2025; 100% TRUSTED
Complete, trusted solutions and explanations…WE WISH
YOU ALL THE BEST
Question 1 Evaporation is an important mechanism for
eliminating heat, particularly on a hot day or when exercising.
What are some of the negative consequences of this mechanism
of heat loss? [5]
Negative Consequences of Evaporation as a Mechanism of
Heat Loss
Evaporation plays a crucial role in regulating body temperature
by removing excess heat, especially during activities like
exercise or on hot days. However, despite its importance,
evaporation can have several negative consequences when the
body relies too heavily on it. Below are the key negative effects
and limitations of this heat loss mechanism:
1. Dehydration
Description: Evaporation leads to the loss of water from
the body as sweat. As sweat evaporates from the skin, it
carries away moisture, reducing the body’s overall water
levels.
Negative Effect: If fluids are not replenished, dehydration
can occur. Dehydration impairs the body's ability to cool
itself effectively, leading to an increased risk of heat
, exhaustion and heat stroke, especially in hot and humid
conditions.
2. Electrolyte Imbalance
Description: Along with water, the body loses electrolytes
(sodium, potassium, chloride, etc.) through sweat during
evaporation.
Negative Effect: Loss of electrolytes can lead to an
imbalance, which in turn can cause muscle cramps,
weakness, and impaired nerve function. In severe cases, it
may lead to hyponatremia (low sodium levels), which can
be life-threatening.
3. Limited Effectiveness in Humid Environments
Description: Evaporation is less effective when the air is
saturated with moisture (high humidity). The higher the
humidity, the slower the sweat evaporates because the air
already contains a large amount of water vapor.
Negative Effect: In humid conditions, the body’s ability to
lose heat through evaporation is diminished. This results in
poor cooling efficiency, which can lead to overheating
and an increased risk of heat stress or heat-related
illnesses.
4. Risk of Overheating