Answer:
final temperature is 364.32 K
mass of air is 0.5423 kg
Explanation:
given data
pressure p1 = 380 kPa
volume v1 = 0.120 m³
temperature = 20°C = 20 + 273 = 293 K
pressure p2 = 3450 kPa
volume v2 = 5% increase
to find out
final temperature and the mass
solution
we consider here ideal gas
so equation is
p1v1 / t1 = p2v2/t2
put here all value and find t2
and v2 is = 0.120 ( 1 + 0.05) = 0.126 m³
so
t2 = p2v2/ p1v1 × t1
t2 = (450 × 0.126) / (380 × 0.120) × 293
t2 = 364.32 K
so final temperature is 364.32 K
and
mass = p2v2 / Rt2
here R gas constant is 0.287 kJ/kg.K
so
mass = (450 × 0.126) / (0.287 × 364.32 )
mass = 0.5423
so mass of air is 0.5423 kg
By definition we have that the density is given by:
Where,
M: mass of the sample
V: volume occupied by the sample
Therefore, substituting values in the given equation we have:
Answer:
the density of a sample of gas with a mass of 30 g and a volume of 7500 cm3 is:
Answer:
mechanical thermal chemical
Explanation: because you use mechanical energy to turn it on
28.65m x 15.24m
Explanation:
The size of a basketball court in the NBA is usually 28.65m x 15.24m giving a total court area of 436.62m².
The NBA is the acronym for National Basketball Association. It comprises of several teams from across United states and Canada in basketball league.
- The game is played by hand with a target basket.
- For each successive throw into the basket, 1 or 2 or 3 points can be awarded.
- In feets the dimensions are 94 by 50 feet
- From the dimension we can accurately say that a basketball court is rectangular in shape.
- James Naismith is credited with the invention of the game of basketball
learn more:
Basketball jump brainly.com/question/11222255
#learnwithBrainly
Answer:
a c d
Explanation:
because I said so and yeah nshsjsisayagavava sishywabhwvsusnsbs
