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Alex73 [517]
3 years ago
9

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal l

ine for an ideal gas whereas the curve for 200°c does not?
Mathematics
1 answer:
stiv31 [10]3 years ago
3 0

Answer:

See answer below

Step-by-step explanation:

the ratio of pv against nrt is called compressibility Z and measures the deviation from an ideal gas behaviour . When Z is plotted against pressure for CH₄ for 0°C and 200°C the curves will differ because there are

- negative deviations ( Z decreases) due to intermolecular forces

- positive deviations (Z increases ) due to molecular size of gas particles

then

- at 0°C the negative deviations prevail  respect to positive deviations at lower pressures ( so Z drops below the horizontal line first ) and then Z increases when pressure increases since the effect of positive deviation is higher ( then Z increases)

- Nevertheless, at 200°C the effect of intermolecular forces is lower and thus the positive deviations always prevail ( thus you observe only Z increasing(

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2. Irene wants to list the factors for 88. She
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Step-by-step explanation:

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What is the final amount if 468 is increased by 8% followed by a further 9%
bixtya [17]

Answer:

The final amount is  550.93.

Step-by-step explanation:

Here, the given amount is 468.

Now 8% of the given amount is \frac{8}{100}  \times 468  = 37.44

⇒ 8% of 468 =  37.44

So, the New amount = Initial Amount  + 8% increase

                                  = 468. +  37.44   = 505.44

Now 9 % of the new  amount 505.44  is

[tex]\frac{9}{100}  \times 505.44  = 45.4896/tex]

⇒ 9% of 505.44  = 45.4896

So, the Final  amount = New Amount  + 9% increase

                                     =  505.44 +   45.4896   = 550.93

Hence,  final amount is  550.93.

7 0
3 years ago
Given the function f(x)=x2+3x-2
defon

Answer:

  11

Step-by-step explanation:

The average rate of change of function f on interval [a, b] is ...

  m = (f(b) -f(a))/(b -a)

Here, that is ...

  m = (f(6) -f(2))/(6 -2)

So, we need to evaluate the function at x=6 and x=2. Writing it in "Horner form" makes this easier.

  f(x) = (x +3)x -2

  f(6) = (6 +3)6 -2 = 54 -2 = 52

  f(2) = (2 +3)2 -2 = 10 -2 = 8

Then the slope is ...

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The average rate of change of f(x) from 2 to 6 is 11.

5 0
3 years ago
The building on Daughtery road are even numbered from 12-136. How many buildings have an address with at least one 4?
IrinaVladis [17]

Answer:

Total 22 buildings have at least one 4 in their address

Step-by-step explanation:

Number between 12 to 136 are as given below -

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

Total numbers having at least 1 four are

14

24

34

40

41

42

43

44

45

46

47

48

49

54

64

74

84

94

104

114

124

134

Total 22 buildings have at least one 4 in their address

3 0
2 years ago
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